Alert archive / Iowa / Heat Advisories in 2010
Heat Advisory 2, NWS La Crosse, WI
NWS La Crosse, WI issued this heat advisory at Jul 17, 2010, 3:57 AM CDT for Crawford County, Grant County, Wisconsin; 8 counties in Iowa. It took effect at Jul 17, 2010, 12:00 PM CDT. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 17, 2010, 3:57 AM CDT (08:57 UTC)
- In effect from
- Jul 17, 2010, 12:00 PM CDT
- Expired
- Jul 17, 2010, 3:19 PM CDT
- In force
- 3 hr
- Issued by
- NWS La Crosse, WI
Counties Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Crawford County, WI, Grant County, WI
The radar
The La Crosse radar (KARX), 93 km from the middle of the area, began a volume at 09:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 9.0 hours before the alert went out and 199 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 510 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 1596 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS La Crosse, WI wrote its last area forecast discussion before this heat advisory went out at Jul 17, 3:43 AM CDT, 14 minutes earlier.
Area forecast discussion, Jul 17, 3:43 AM CDT, 14 minutes before
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</html>Hazardous weather outlook, Jul 16, 3:00 PM CDT, 12 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LA CROSSE WI 300 PM CDT FRI JUL 16 2010 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034- 041>044-053>055-061-171100- ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CLAYTON-CRAWFORD-DODGE- FAYETTE-FILLMORE-FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE- MITCHELL-MONROE-MOWER-OLMSTED-RICHLAND-TAYLOR-TREMPEALEAU-VERNON- WABASHA-WINNESHIEK-WINONA- 300 PM CDT FRI JUL 16 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF NORTHEAST IOWA... SOUTHEAST MINNESOTA AND SOUTHWEST INTO CENTRAL WISCONSIN. .DAY ONE...TONIGHT A FEW THUNDERSTORMS MAY FORM LATE THIS AFTERNOON OR DURING THE EARLY EVENING ALONG AND NORTH OF INTERSTATE 90 WITH SOME INSTABILITY AROUND. WIDESPREAD SEVERE WEATHER IS NOT EXPECTED BUT A STORM OR TWO MAY GROW STRONG ENOUGH TO PRODUCE DAMAGING WINDS AND LARGE HAIL. ANY STORMS THAT DO FORM SHOULD MOVE SOUTHEAST IMPACTING AREAS SOUTH OF INTERSTATE 90 BEFORE DISSIPATING LATER THIS EVENING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO FORM IN MAINLY CENTRAL AND WESTERN MINNESOTA LATE SATURDAY AS MORE WARM AIR AND MOISTURE PUSH NORTHWARD. WHERE STORMS FORM THERE WILL BE A HAIL AND TORNADO THREAT BEFORE THESE STORMS EVOLVE INTO A LINE AND MOVE INTO THE AREA DURING THE EVENING OR OVERNIGHT EARLY SUNDAY MORNING. AS THEY MOVE THROUGH THE MAIN SEVERE THREATS LOOK TO BE DAMAGING WINDS...LOCALLY HEAVY RAINS AND FLASH FLOODING. SEVERAL ROUNDS OF THUNDERSTORMS ARE POSSIBLE DURING NEXT WEEK. WHILE IT IS TOO EARLY TO DETERMINE THE DETAILS OF ANY SEVERE WEATHER...HEAVY RAINFALL COULD CERTAINLY LEAD TO FLOODING PROBLEMS. .SPOTTER INFORMATION STATEMENT... WIDESPREAD SPOTTER ACTIVATION IS NOT EXPECTED THIS EVENING... BUT AN INDIVIDUAL GROUP OR TWO MIGHT BE NEEDED IF STORMS DO REACH SEVERE LEVELS BETWEEN 5 PM AND 9 PM. THERE APPEARS A GREATER NEED FOR SPOTTERS SATURDAY NIGHT AS STORMS APPROACH FROM CENTRAL MINNESOTA. WATCH LATER OUTLOOKS FOR DETAILS. .EMERGENCY MANAGEMENT COORDINATION... NO CALL IS SCHEDULED AT THIS TIME. RRS/SHEA
In the hours before
Local storm report, Jul 17, 12:18 AM CDT, 3 hours 39 minutes before
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</html>The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 6:14 PM CDT | Severe Thunderstorm Warning | ARX | Winona | 46 min |
| Jul 17, 6:28 PM CDT | Areal Flood Advisory | ARX | Winona | 3 hr |
| Jul 17, 6:40 PM CDT | Severe Thunderstorm Warning | ARX | Houston | 66 min |
| Jul 17, 6:57 PM CDT | Areal Flood Advisory | ARX | Houston | 2 hr |
Nearby
Heat Advisories in Iowa, 2010Heat Advisories in Wisconsin, 2010Every heat advisory in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.